Plow.



P. W. A. TEGHMER.

PLOW. APPLICATION FXLED PEB.2. 1910 Patented Dec. 24, 1912.

3 SHEETS-SHEET 1.

Ill 11% P. W. AQ TEGHMER.

PLOW.

APPLICATION FILED FEB. 2, 1910.

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PLOW.

APPLICATION FILED FEB. 2, 1910.

Patnted Dc.24,1912.

3 SHBETSSHBET 3.

FRED W. A. TECHMER, OF LA CROSSE, WISCONSIN.

PLOW.

Specificationof Letters Patent.

Patented Dec. 24, 1912.

Application filed February 2', 1910., Serial No. 541,553.

To all whom it may concern:

Be it known that I, Fnnn W. A. TECHMER, a resident of La Crosse, in the county of La Crosse and State of \Visconsin, have invented certain new and useful Improvements in Plows, of which the following is a full, clear, andexact description.

The invention relates to plows and more particularly to the mechanism for operating plow-shares and the furrow wheels being omitted. Fig. 1 a vertical section on line 1 of Fig. 1 on a somewhat larger scale. Fig. 2 is a side elevation, the land wheel be-z ing omitted. Fig. 3 is a detail ofthc plow lowering mechanism.

view of the adjusting lever for the land wheel. Fig. 1 is a front view of the draftoperated lifting-mechanism and. the driving mechanism therefor. Fig. 5 is a horizontal section taken on line 5-5 of Fig.4. Fig. 6

is a section taken on line 66 of Fig. 1-. Fig. 7 is a section taken online 7--7 of Fig 1.

The improved plow=0perating mechanism may be embodied in any type of plow and in the drawings it is illustrated as being embodied in a gang plow which. comprises a suitable frame 12 sustained by a front fur row-wheel 13, a rear furrow or caster-wheel 111-, and a land-wheel 15. These furrowwheels are'adjustable in the frame, as well understood in. the art. Plow-shares 16 and 17 are carried by plow-beams 18 a'nd 19, resper-tively, and an operators seat 20 is provided as usual. The plow-operating mechacomprises a shaft 21, which is jour- Il nal n a suitable bearingQQ at one sideiof.

an. s.-

is connected to the plow-beams bya crank bail 2?, which ex ends through suitable brackets or bearings 38 which are secured crank serves to shift Fig; 3 is a detail in, at the land side, in bearings 23: on a-bracket' 25 which is secured to the frame 12 by bolt? 26. This shatt 21 frame and the movement of the rear portion of the plow-beams is controlled by a bracket having an angularslot 31 therein and a stud 33 on a standard 34suitably mounted 1n the frame 12, extends into said angular slot, and this mechanismcontrols the rais-' ing and lowering of the rear portion of the plow beams as the latter are movedfon wardly and downwardly in being lowered and upwardly and backwardly in being raised, so that the plows will be positioned at the desired angle for lowering and raising respectively, as well understood'in the art.

, The land-wheel 15 is adjustably connected to the frame, so the latter may be raised or lowered, and is mounted on a spindle 46, which is secured to the lower end of a bifurcated arm 47, which is journaled on the crank-shaft 21-. A hand-lever 48 is rigidly secured to this arm 47 and is provided with a finger-controlled lock 50 adapt-ed to engage with the teeth of rack 49, which is secured in fixed relation to the main frame and is integrally formed with the outer bearing 24: which is secured to the plowframe by bracket 25'. By adjustment of lever L5, the height of the land-side of the frame may be adjusted to vary the elevation The plow-lowering mechanism comprises a, foot-lever 35 which is -ournaled on the crank 27 of shaft 21 and this lever is providcd with a treadlc 36 at its rear end and its front end is pivotally connected, as at 3'? to a link 38, which has its lower end connected by a pin and slot 39 to a bracket 40, which is secured to the main frame. A stud 41 projects inwardly frombracket 40 and a cam or curved abutment 42 on lever 35 is adapted to pass under said abutment, as shown'in Fig. 3, so that when lever 35 is pushed downwardly after the link 38 has ceased to become effective, stud 41 will serve as a resistance-pin or fulcrum about which lever 35-may be'swung. A spring 43 on rod slides in a bracket 46 secured to theplowbeam 19, yieldingly holds the lever 35 in proper position for operation. Any suitable means (not shown) may be employed in lockingthe plow in raised'position, if de' sired.

The improved mechanism for operating the crank-shaft 21 to raise the plow out of the ground, comprises a pinion 51 whichis which is pivoted to lever 3-5 at 45'and secured to rotate with the land-wheel. This pinion meshes with a gear-wheel 52 loosely mounted on the outer end on shaft 21 (see Fig. 1) Gear-wheel 52 is held against longi tudinal movement of shaft 21 by a collar 53 and a shoulder 54 and its inner face is, provided with clutch-teeth 55 adapted to mesh with corresponding teeth 56 on a clutch-collar 57, which is connected by a spline 57 to rotate with said shaft. This collar is slidable longitudinally on the shaft, so that it may be brought into or out of engagement with the clutch-teeth on gearwheel 52 and is normally disconnected from said wheel. When the clutch-collar and gear-wheel 52 are connected together and the land-wheel is passing over the ground, shaft 21 will be turned to operate crank 27 to raise the plows.

The mechanism for cont-rolling the clutchcollar to shift it into engagement with gearwheel 52 and to cause the plows to be raised, comprises a foot-lever 58 which is pivotally mounted on shaft 21 (Figs. 5 and 7) and is provided at its front end with a roller or abutment 59 which is adapted to engage a cam or lug 60 on'a collar 60 which is secured to a controller shaft 61, to shift it longitudinally and outwardly to cause the clutch-collar 57 to engage and take power from gear-wheel 52. This controller-shaft 61, is mounted in a bearing 62 integrally formed with bearing 24 and in a lug 63 on bracket 25. The outer end of this controllershaft is formed with a yoke 64 having studs 65 which extend into a divided ring 66 which fits in a groove in the clutch-collar 57. By shifting the controller-shaft 61 longitudinally in one direction, the clutch-collar will be shifted into engagement with gear 52 to turn crank-shaft 21 and a reverse shift of the shaft will withdraw the collar from engagement with gear-wheel 52 to disconnect the crank-shaft from the driving connection. Controller shaft 61 is operated inwardly to disconnect the clutch-collar from gear-wheel 52, by a cam 65, which is secured to turn with shaft 21 and is adapted to engage an abutment 66 on the hub of cam-collar 6.0, so that when shaft 21 has been turned sufiiciently to bring the plow into raised position, shaft 61 will have been shifted to withdraw the clutch-collar 57 from engagement with gear-wheel 52.

The controller-shaft 61 is normally pressed outwardly by a spring 68 disposed between bearing 63 and cam 60 to hold the clutch-collar in position to engage the clutchteeth 55 on gear-wheel '52. To prevent this spring from shifting shaft 61 to render the clutch operative when the crank-shaft 21 is operated in lowering'the plow a springpressed lock is provided, this lock being re leased during the initial movement of the foot-lever 58. This crank-shaft 21 and a latch lock consists of a bolt 70 slidably mounted in a lug 71 on framebracket 25 and having its lower end extended to fit into a recess 72 in collar 60. The bolt is normally pressed downwardly to pass into said seat, by a spring 73. A lug 7 1 on the foot-lever is adapted to engage an extension or lug 75 on a lock-bolt 70 to raise it sutliciently to withdraw it from recess 7 2 and to permit cam60 and controller shaft 61 to be shifted longitudinally by spring 68, when thefoot-lever 58 is depressed. \l hen foot-lever 58 is depressed and the plows are in lowered position, said lever will initially raise bolt 70 to release controller-shaft 61 and cam 60, so that spring 68 and roller 59 during the further movement of the footlever, will shift the controller-shaft outwardly to cause the clutch-collar 57 to rotate with gear-wheel 52 and to be driven by the land-wheel.

In practice, shall be locked in lowered position and for this purpose an arm 76 is rigidly secured to 77 is slidably mounted'on the inner end of controllershaft 61 and connected thereto by a bolt and slot-connection 78. The latch is normally pressed inwardly or into operative position by a light spring 7 9, which permits arm .78, when the crank-shaft is operated by the plow-lowering mechanism, to be shifted beneath the latch to cause the latter to lock the arm when the plows have been lowered. When the controllershaft 61 is shifted outwardly by foot-lever 58 and spring 68, to cause the draft-operated mechanism to raise the plows, bolt 78 will cause latch 77 to be shifted outwardly clear of arm 76 to release the latter and permit the plow-lifting mechanism to raise the plow. Lever 58 has a split hub and is positioned longitudinally on crank-shaft 21 by a collar 80 which is secured to the shaft by a set-screw 81. adjustment of the collar, the lever may be set into proper relation with respect ,to cam 60. The lever is normally and yieldingly held in normal position by a spring 52. In event the draft-operated lifting-mechanism should become inoperative, it is desirable that some means should be provided whereby the driver can raise the plows. By securing lever 58 to thecrank-shaft 21, for example: by set-screw 83, (Fig. 7) the depression of the lever will cause the shaft to be operated directly and independently of the draftoporated lifting mechanism.

The operation of the improved plowshifting mechanism will be as follows: Assuming the parts to be in normal position, as shown in Fig. 2, and the plows to be in raised position, the latter may be lowered by depressing lever 35, which will cause crank 27 to turn, and lower the plows. The particular construction of plow-lowering mechanism I do not claim as my invention. In lowering to cause clutch-collar 57 to engage clutchteeth on gear-wheel 52. The outward shift of controllenshaft 61 will also oper ate latch 77 to release arm 76. Thereupo'n, pinion 51, which rotates with the landwheel, will rotate gear-wheel 52 which will, by means of the clutchcollar 57- rotate crank-shaft 21 to operate crank 27 to raise the plows. When the shaft has been turned sufficiently to bring the plows into raised position, cam 65 will engage abutment 66 on collar 60 and shift the controller-shaft 61 inwardly againstthe force of spring 68 and cause said shaft to withdraw clutch-collar 57 from engagement with gear-wheel 52. Lock-bolt 70 will then hold cam 60 and shaft 1 against outward movement until the plow has again been lowered and the lever 58 is again operated to raise the plow.

The invention thus provides draft-operated lifting mechanism for the plow which may be readily controlled and which is simple in construction and which positively controls the plow. Furthermore, the construc: tion is such that it may be embodied in plows of standard construction without modification of a general arrangement of parts.

The invention is not to be understood as restricted to the details shown and described, since these may be modified within the scope of the appended claims, without departing from'the spirit and scope of the inventio Having thus described the invention, what I claim as'new and desire to secure by Let ters Patent, is:

1. Ina plow, the combination of furrowwheels and a'land-wheel, a frame, a plow .movably sustained by said frame, an arm on which the land-wheel is mounted, a lever for adjusting said arm, and draft-operated plow-lifting mechanismoperated by the land-wheel and comprising a shaft on which said arm is mounted, a gear wheel on said shaft, and a gear mounted to rotate with the land-wheel and meshing with the gear on said shaft. Y

2. In a plow,the combination of carryingwheels comprising a land-wheel, a frame, a plow, a plow-operating shaft carried by said frame, an arm for adjustably connecting the land-wheel t6 the frame, a lever for adjusting saidarm, a gear mounted on the arm and driven by the land-wheel, a gear on said shaft and meshing with the gear on said arm, and means for controlling the operation of the shaft by said gears.

3. In a plow, the combination of earrylngwheels comprising a land-wheel, a frame, a plow, a plow-operating shaft mounted on said frame,.an arm for adjustably connecting the land-wheel to the frame, a leverfo'r adjusting said arm, a gear mounted on the arm and driven by the land-wheel, a gear on said shaft and meshing with the gear on said arm, a clutch on said shaft for driving the shaft from the gear thereon, and means for automatically disconnecting the clutch when the plow has been raised.

4;. In a plow, the combination of carryingwheels comprising a land-wheel, a frame, a plow, a plow-operating shaft carried by said frame, gear-mechanism between said shaft and the land-wheel, a clutch between the gear-mechanism andfhe shaft, means for locking the clutch in disengaged position, and a lever for releasing the-locking-mechanism and shifting the clutch into operative position.

v 5. In a plow, the combination of carryingwheels, comprising a land-wheel, a frame, a plow, a plow-operating shaft mounted on said frame, gear-mechanism between the land-wheel and said shaft, a clutch for causing said gear-mechanism to operate said shaft, controlling-means for the clutch comprising means for automatically disconnecting the clutch when theplow has been raised, a throw-in lever for the clutch, and means for locking the clutch in disconnected position, operated by said lever.

6. In av plow, the combination of carryingwlieels comprising a'land-wheel, a frame, a

plow, a plow-operating shaft, a lock for holding the plow in lowered position, draftoperated lifting-mechanism operated by said land-wheel comprisinga plurality of gear wheels, and mechanism for controlling the operation, of said shaft by said draft-operated mechanism, compi-ising means for automatically' disconnecting the lifting-means when the plow has been raised, and a lever for rendering said lifting-means operative.

clutch operative, a latch for locking the shaft when the plow is lowered, means controlled by the lever for' releasing the latch when the clutch is rendered operative. and

means for disconnecting ,tlreplutch when the plow has been raised.

8. In a plow, the combination of carrying wheels, a frame, a plow, a plow-operating shaft, having a crank thereon to which the plow is connected, a driving-connection between one of the carrying-wheels and said shaft, a clutch for controlling the operation of said shaft by said connection, a spring applied to hold the clutch operative, means for holding the clutch inoperative when the plow is lowered, a lever for operating the clutch to render it operative, and a cam fixed on the crank-shaft for rendering the clutch inoperative when the plow has been raised..

9. In a plow, the combination of carryingwheels, a frame, a plow, a plow-operating shaft having a crank thereon to which the plow is connected, a driving-connection between one of the carrying-wheels and said shaft, a clutch for controlling the operation of said shaft by said connection, a spring for holding the clutch operative, a longitudinally movable shaft for operating the clutch, a lever for controlling the clutchoperating shaft to render the clutch operative, and a cam operated by the crank-shaft for disconnecting the clutch when the plow has been raised.

10. In a plow, the combination of carrying-wheels, a frame, a plow-operating shaft having a crank thereon to which the plow is connected, a driving-connection between one of the carrying-wheels and said shaft, a

clutch for controlling the operation of saidshaft by said connection, a lever for render-- ing the clutch operative, a lock for holding the clutch in released position when the plow is lowered, a foot-lever provided with means for releasing the lock and controlling the movement of the shaft to cause the clutch to become operative, and a cam secured on the crank-shaft for disengaging the clutch when the plow has been raised.

11. In a plow, the combination of carry ing-wheels, a frame, a plow, a plow-operating shaft having a crank thereon to which the plow is connected, a driving-connection between one of the carrying-wheels and said shaft, a-clutch for controlling the operation of said shaft by'said connection, a lever for rendering the clutch operative, a longitudinally movable shaft for shifting the clutch, a cam fixed on the crank-shaft having a slot. there-in through which said clutclroperating shaft extends, for releasing the clutch when the plow has been raised, and a foot-lever for shifting said shaft to render the clutch operative. a

12. In a plow, the combination of carry- Y ing-Wheels comprising a land-wheel, a

frame, a plow, a plow-operating shaft, a driving-connection between the land-wheel and said shaft, a clutch for controlling the operation of said shaft by said connection,

-me'chanism for controlling the operation of I, said clutch comprising a lever and cam for '65 rendering the ,clutch operative, a cam fixed on said shaft for disconnecting the clutch when the plow has been raised, a lock for holding the plow in lowered position controlled by said lever, and means for holding the clutch in disconnected position, said lever being provided with means for releasing the holding-means.

13. In a plow, the combination of carrying-wheels comprising a land-Wheel, aframe, a plow, a plow-operating shaft, a drivingconnection between the land-wheel and said shaft, a clutch for controlling the operation of said shaft by said connection, mechanism for controlling the operation of said clutch comprising a longitudinally movable shaft,

a lever for shifting the latter shaft to render the clutch operative, a lock for securing the plow in its lowered position comprising an element-operated by longitudinal movement of the clutch-controlling shaft.

14. In a plow, the combination of carrying-wheels comprising a land-wheel, a frame, a plow, a plow-operatin shaft, a driving-connection between the find-wheel and said shaft, a clutch for controlling the operation of said shaft by said connection, mechanism for controlling the operation of said clutch comprisinga longitudinally movable shaft, a lever and cam for shifting said shaft in one direction, and a cam fixed to the plow-operating shaft for shifting said clutch cont-rolling shaft in the other direction.

15. In a plow, the combination of carrying-wheels comprising a laud-Wheel, a frame, a plow, a plow'operating shaft, :1

. driving-connection between the land-wheels and said shaft. comprising a plurality of gear wheels, a clutch for controlling the operation of said shaft by said connection, mechanism for controlling the operation of said clutch comprising a longitudinally movable shaft, locking-means for holding the plow in lowered position operated by said latter shaft, and a lever for shifting said shaft.

16. In a plow, the combination of carrying wheels, a frame, a plow, a crank-shaft for operating the plow, a driving-connection betweenone of the carrying-wheels and said shaft, a clutch for controlling the operation of the crank-shaft by said connection, a lon 'itudinally movable shaft for controlling it e clutch, means for locking the clutch in moperative position, a lever for controlling said clutch, movable independently of said lockshaft, a clutch for controlling the operation of the crank-shaft by said connection, a

10 raised.

20 said clutch movable 25 the clutch when longitudinally movable shaft for controlling the clutch,

ating the clutcl1-controlling shaft to dis connect the clutch when the plow has been 18.;In a plow, the combination of carrying-wheels, a frame, a plow, a crank-shaft for operating the plow, a driving connection between one of the carrying-Wheels and said 15 shaft, a cliltch for controlllng the operation of the-crank-shaft by said connection, a longitudinallymovable shaft for controlling the clutch, means for locking the clutch in inoperative position, a lever for operating independently of said locking-means, a lock for holding the plow in lowered position, operated by said clutchcontrolling shaft, and means for operating the clutch-controlling shaft 'todisconnect the plow has been raised.

19. In a-plow, the combination, of carrying-wheels, a frame,

Copies or this patent may heim'tained for ijve cents each, by Washington, I). 01

independently of said J aplow, a crank-shaft k for operating the plow, a driving-connection between one of the carrying-wheels and said shaft, a clutch for controlling the operation of the crank-shaft by said connection, a longitudinally movableshaft for controlling the clutch, means for locking the clutch in inoperative position, a lever for operating said clutch, movable independently of said locking-means, a lock for holding the plow in lowered position comprising a latch carried at one end of the clutch-controlling.

shaft.v

20. In a plow, the combination of carrying wheels, a frame, a plow, a plow operating shaft, a driving connection operated by one of said wheels for operating said shaft to raise the plow, a clutch for FRED W. A. TECHMER.

Witnesses:

HENRY N IEBUHR, MARY ScHMnLzER.

addressing the Commissioner of Patents,

controlling p the operatlon of sald shaft by said connec- 

